基于SAW卷积器的匹配滤波技术  

Matched Filters Technology Based on SAW Convolvers

作　　者：李吉孚[1] 万德志 朱俊樵[1] 严晓兰[1] 何世平[2] 

机构地区：[1]合肥电子工程学院 [2]东南大学无线电研究所

出　　处：《压电与声光》1989年第3期12-17,共6页Piezoelectrics & Acoustooptics

基　　金：国家自然科学基金资助项目

摘　　要：本文从理论上分析、研究了应用SAW卷积器实现匹配滤波的特点,并以实验证实了理论分析的正确性。研究结果表明,应用SAW卷积器实现匹配滤波,不仅能使信噪比达到理论上的最大值,实现最佳匹配滤波,而且具有信号分辨率提高一倍,当信号为零时,噪声亦几乎为零等优点。In this paper,we have, in theory, examined and analysed the features of using SAW convolvers to make matched fillers,and the correctness of the theorical analysis have been experimentally proved. The results show that by applying the convolvers to make the matched filters,not only the maximum theorical signal-to-noise ratio and the optimum matched filter can be achieved, but some other advantages can also be obtained.For example, range-resolution can be doubled, and when signals are reduced to zero noises will be almost reduced to zero.

关 键 词：滤波 声表面波 卷积器 匹配 

分 类 号：TN713[电子电信—电路与系统]